Grade 9 - Materials
Click on the texts to see the materials
Semester 1
​
Chapter 1 -
Simple Machine
-
Definition of simple machines
-
Lever arm
-
Incline plane
-
Pulleys
-
Gears
-
Working principle of simple machines
-
Mechanical advantage of simple machines
Chapter 2 -
Static Electricity
-
Charging and discharging
-
Explaining static electricity
-
Electric fields and electric charge
​​
Chapter 3 -
Electrical Quantities
-
Current
-
Electromotive forces
-
Potential difference
-
Resistance
-
Electrical working
​
​
​​
Semester 2
Chapter 4 -
Electric Circuit
-
Circuit components
-
Combinations of resistors
-
Electrical safety
​
Chapter 5 -
Magnetism
-
Permanent magnets
-
Magnetic fields
​​
Chapter 6 -
Electromagnetism
-
The magnetic effect of a current
-
Force on a current-carrying conductor
-
Magnetic force on a current-carrying coil - The D.C. motor
​​
Chapter 7 -
Electromagnetic Induction
-
Generating electricity
-
Electromotive force (e.m.f)
-
Alternating current (A.C.) generator
-
Power lines and transformers
-
How transformers work
Videos
Semester 1
​
Chapter 1 -
-
Definition of simple machines
-
Lever arm
-
Incline plane
-
Pulleys
-
Gears
-
Working principle of simple machines
Chapter 2 -
Static Electricity
​​
Chapter 3 -
Electrical Quantities
-
Electromotive forces
​
​
​​
Semester 2
Chapter 4 -
Electric Circuit
-
Electrical safety
​
Chapter 5 -
​​
Chapter 6 -
-
The magnetic effect of a current
-
Force on a current-carrying conductor
​​
Chapter 7 -
Electromagnetic Induction
Slides
Semester 1
​
Chapter 1 -
Simple Machine
-
Definition of simple machines
-
Lever arm
-
Incline plane
-
Pulleys
-
Gears
-
Working principle of simple machines
-
Mechanical advantage of simple machines
Chapter 2 -
Static Electricity
-
Charging and discharging
-
Explaining static electricity
-
Electric fields and electric charge
​​
Chapter 3 -
Electrical Quantities
-
Current
-
Electromotive forces
-
Potential difference
-
Resistance
-
Electrical working
​
​
​​
Semester 2
Chapter 4 -
Electric Circuit
-
Circuit components
-
Combinations of resistors
-
Electrical safety
​
Chapter 5 -
Magnetism
-
Permanent magnets
-
Magnetic fields
​​
Chapter 6 -
Electromagnetism
-
The magnetic effect of a current
-
Force on a current-carrying conductor
-
Magnetic force on a current-carrying coil - The D.C. motor
​​
Chapter 7 -
Electromagnetic Induction
-
Generating electricity
-
Electromotive force (e.m.f)
-
Alternating current (A.C.) generator
-
Power lines and transformers
-
How transformers work
Exercises
Semester 1
​
Chapter 1 -
Simple Machine
-
Definition of simple machines
-
Lever arm
-
Incline plane
-
Pulleys
-
Gears
-
Working principle of simple machines
-
Mechanical advantage of simple machines
Chapter 2 -
Static Electricity
-
Charging and discharging
-
Explaining static electricity
-
Electric fields and electric charge
​​
Chapter 3 -
Electrical Quantities
-
Current
-
Electromotive forces
-
Potential difference
-
Resistance
-
Electrical working
​
​
​​
Semester 2
Chapter 4 -
Electric Circuit
-
Circuit components
-
Combinations of resistors
-
Electrical safety
​
Chapter 5 -
Magnetism
-
Permanent magnets
-
Magnetic fields
​​
Chapter 6 -
Electromagnetism
-
The magnetic effect of a current
-
Force on a current-carrying conductor
-
Magnetic force on a current-carrying coil - The D.C. motor
​​
Chapter 7 -
Electromagnetic Induction
-
Generating electricity
-
Electromotive force (e.m.f)
-
Alternating current (A.C.) generator
-
Power lines and transformers
-
How transformers work